## Wednesday, March 13, 2013

### Our Latest Fraction Projects!

In all of our spare time in between testing, we have been doing a few fun fraction projects that I thought I would share.

The first one was to review adding and subtracting fractions with unlike denominators.  Most of my kids got it quickly, but some of them were still working through finding common denominators.  Pattern Blocks are super popular for teaching fractions, so we used an idea from Mathematics For Elementary Teachers and tweaked it a bit to practice addition and subtraction.

There are three steps to the project. The first one is pretty cut and dry for the students to see the equivalent fractions with the pattern blocks.

Then it moves on to something a little more tricky, where TWO hexagons equals a whole, and the students have to use the models a little differently.  You can see in the picture below all the work this student did figuring out how to model it.  By number 3 and 4, this student had a very SOLID grasp of how it worked, so I allowed her to show me the model, then signed off on it without her having to draw it on the paper.  For the kids still needing reinforcement, they continued to draw it on the paper.

I threw the last one in there to see if the students would recognize that they couldn't do it.  This student did, but some didn't until they set up the model visually.